Index: 03_drawing.html
===================================================================
--- 03_drawing.html	(revision 1939)
+++ 03_drawing.html	(revision 1940)
@@ -390,7 +390,7 @@
 <tr><td> <i>oid</i> <td> yes       <td> &nbsp;
 <tr><td> <i>next_oid</i><td> yes   <td> signed 32 bit integer (see above at common drawing object properties)
 <tr><td> memb       <td> yes       <td> list of 1 or more member objects; these drawing objects are the children of the group node
-<tr><td> rot        <td> yes       <td> rotation angle and xc;yc for rotation center; can be 0;0;0 for no action
+<tr><td> rot        <td> yes       <td> rotation angle around x;y;  can be 0 for no rotation
 <tr><td> x, y       <td> yes       <td> x;y offset; can be 0;0 for no action
 </table>
 
@@ -418,7 +418,7 @@
 <tr><th> property   <th> mandatory <th> description
 <tr><td> <i>oid</i> <td> yes       <td> &nbsp;
 <tr><td> ref        <td> yes       <td> reference to an existing group
-<tr><td> rot        <td> yes       <td> rotation angle and xc;yc for rotation center; can be 0;0;0 for no action
+<tr><td> rot        <td> yes       <td> rotation angle around x;y; can be 0 for no rotation
 <tr><td> x, y       <td> yes       <td> x;y offset; can be 0;0 for no action
 </table>